290290329 has 24 divisors (see below), whose sum is σ = 479693760. Its totient is φ = 165712608.

The previous prime is 290290313. The next prime is 290290393. The reversal of 290290329 is 923092092.

It is not a de Polignac number, because 290290329 - 2⁴ = 290290313 is a prime.

It is a super-2 number, since 2×290290329² = 168536950221856482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 290290293 and 290290302.

It is not an unprimeable number, because it can be changed into a prime (290290129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88287 + ... + 91515.

It is an arithmetic number, because the mean of its divisors is an integer number (19987240).

Almost surely, 2^290290329 is an apocalyptic number.

It is an amenable number.

290290329 is a deficient number, since it is larger than the sum of its proper divisors (189403431).

290290329 is a wasteful number, since it uses less digits than its factorization.

290290329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4669 (or 4666 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 290290329 is about 17037.9085864433. The cubic root of 290290329 is about 662.1314083047.

The spelling of 290290329 in words is "two hundred ninety million, two hundred ninety thousand, three hundred twenty-nine".